Category:Staple Bend Tunnel

English: The Staple Bend Tunnel, about 4 miles (6.4 km) east of Johnstown, Pennsylvania, in a town called Mineral Point, was constructed between 1831 and 1834 for the Allegheny Portage Railroad. Construction began on April 12, 1831.[3] This tunnel, at 901 feet (275 m) in length, was the first railway tunnel constructed in the United States. It is rock bored and stone line.d